Veterinary castrating instrument



March 22, 1932. H4 2mg VETERINARY GASTRATING INSTRUMENT Filed July 5l,1930 2 Sheets-Sheet March 22, i932; H. ZINS VETERINARY CASTRATINGNsTRUMENT Filed July 5l, 1950 V2. Sheets-Sheet Patented Mar. 22, 1932UNITED STATES 'AreNfT oFFIcl; A

HUBERT zrNs, or wABnsso, MINNESOTA l VETERINARY CASTRATING' INSTRUMENTApplication' med muy 31,

This invention .relates to an instrument adapted primarily forcastrating animals such as cattle and sheep and itvaims to provide anovel means whereby the result may be accomplished without inflictingexternal wounds but rather to crush or sever the sper: matic cord andleave the testicles in situ Y where they will atrophy away and therebylsepticaemia or infection. f

The more specific objects and advantages will become apparent from aconsideration of the description following taken in connec# tion withaccompanying drawings illus-v trating an operative embodiment.

In said drawings Figure 1 is a view illustrating the improved instrumentin elevation, portionsof the same being broken away to disclose details,

Figure 2 is a sectional detail taken on the l y The bar-member 11 isslidable against the line 2-2 of Figure 1, v

Flgure 3 1s a cross sectlonal v1ew taken on `the lin-e3-3 of Figure 1,

Figure 4 is a cross sectional view taken on the line 4-4 of Figure 1,

Figure 5 is a view somewhat similar to Figure 1 but showing the partsseparated,

Figure 6 is a sectional view taken` on theV line 6-6 of Figure l,

Figure 7 is a sectional view taken on the line 7-7 of Figure 1, and

Figure 8 is a detail perspective view of a portion of the operatinglever.

Referring specifically to the drawings, 10 designates a relatively fixedbar member and 11 a relatively movable bar member, such membersrespectively having lateral or olfset jaws as at 12 and 13,respectively. Prongs 14 extend lforwardly from the jaw member 13 andbeyond the same and are fastened in place by removable and adjustablebolts 15.

The portion of the jaw 13 through which the j bolts pass is triangularin cross section as .A knob or manual grip22is 1930. serial No. 472,111.

Vshown in Figure 2 and resilient blocks 16, which may be separate asshown or Vin a single piece as preferred, .are interposed between theprongs 14 and the jaw 13, thejlit of the prongs 14 on the bolts beingrather loose wherebythe free ends of such prongs 14 may spread orseparateas permitted and cushioned by the resilient blocks 16.

The jaws, in the openyposition, as .shown in VFigure 5, are adapted tobe placed over"A the spermatic cord which is held with the left handagainst' the outer wall of the scrotum and well above the testicle, theprongs 14receiving the cord between them Vand* the jaw 13y then beingmoved backwardly and 'forwardly in order to crushthe cord without dangerof slipping or disengagement, against the jaw 12. Since the prongs 14are-movable toward and away from-each other and cushioned by the blocks16, they are automatically adjustable according to the thickness of theskin which they engage. i. Y

The bar member 1() is rigid with -a hollow handle portion 17, preferably`being 'fastened `tothe top'wall 18-thereof.f A guide of U- shapesurrounds the bar members 10,4 and 11 and isriveted or boltedto thelatter asat 19.

under surface of the wall 18 and has a guideV and operating member -20which'lis slidable through the front vwall 21 of the handle 17 providedon the end of the member 20.

A trigger' orvoperating lever 23 is con- Unected to a U-shaped member 24which is pivoted at 25 to the handle portion 17. The under surfaceof thebar 111s toothed or ser- Y rated as at 26 andthe sameis engageable byteeth 27 and 28, of p 'awls 29 and .30, respectively. Pawl 29 is pivotedat 31 to the lever-19 member 24 while the .pawl 30 is pivoted at 32 tothe handle 17. Pawl 3() has an elongated memberor tine .33 which visengaged by a crossmemberl 34- suitably fastened to the le` ver 24.-A-leaf; spring 35 fastened-to .the handle 17 constantlyV urges thepawl30 into l.engagementwith the'cross member 34. The

`cross member or abutment '36.is provided on the Yhandle 17 forthe pawlA29 and aleafflg spring 37 secured to such handle lurges the pawl 29against the abutment 36 and into locking engagement with the teeth 26.

As a result of the construction described, the lever 23 may .be thrownforwardly relatively to the handle portion 17 which results indisengaging the pawls 29 and 30 from engagement with the teeth 26.Thereupon the knob 22 may be engaged to movethejawmember 13 away fromthe member 12 in order to receive or engage thev spermaticcordbetweenthe aws. The bar 11 is then moved forwardly to engage thecordbetween--the j-aws 12 and 13 and prongs 14. Then by moving the lever23 towards handle 17 by grippingit with the fingers of one hand, theother hand holding the jaws andy spermatic cord in position,the teeth 27of pawl 29 will push jaw 13 against the cord and jaw 1'2 and by movinglever 2'3'backwardly and forwardly the pressure will be increased andthe cord crushed, the tooth 28 of pawl 30 holding the bar from rearwardmovement during said movements of the lever.

It will be realized that my means of the present invention, thespermatic cord is secured or held against displacement before anypressure is applied to the cord in order to separate or crush it.

1t will be realized that after completing the operation relative to onecord, the instrument is disengaged and turned approximately one hundredand eighty degrees whereupon the same procedure as previously described,isfollowed with respect to the other cord.

Various changes may be resorted to provided they fall within the spiritand scope of the invention.

I claim asmy invention 1. In a castrating instrument, a pair of jaws toengage a spermatic cord, means on one of the jaws extending beyond theplane of engagement thereof with thecord, to prevent disengagementtherewith, means permitting relative movement-of the first mentionedmeans to accommodate two thicknesses of the skinV between the jaws,comprising a pair of prongs, means securing the same to one of the jawsfor movement toward-and away from each other and cushioning meansagainst which the prongs operate.

2. Ainv instrument of the class described comprising a pair of barmembers, jaws on said members, a handle to which one of said f membersis secured on one side thereof, the second member being shdably mounted1n the handle and movable relatively to the first member, teeth on thesecond member, a lever cooperating withV the handle, a pawl associatedwith said lever and with said teeth so that operation of the lever willmove the movable member and jaw relatively to the other jaw, said pawlbeing disengageable from the second member to permit manual operation ofthe latter.

3. An instrument of the class described comprising a pair of barmembers, jaws on said members, a handle to which one of said members issecured on one side thereof, the second member being slidably mounted inthe handle and movable relatively to the first member, teeth on thesecond member, a lever cooperating with the handle, a pawl associatedwith said lever and with said teeth so that operation Vof the lever willmove the movable member relatively to the other member and jaw, saidpawl being disengageable from the secondmember to permit manualoperation of the latter, a manually operable element extending from thesecond member andrthrough the handle to actuate said memberalternatively with said lever, andl a guide carried by one oftheimembers and surrounding the other memberbeyond the forward eX-tremity of the handle.

1n testimony whereof I aiiifX my signature.

HUBERT ZINS

